4D reconstruction datasets.
To support 4D reconstruction, a dataset needs to have both ground-truth 3D models and accurate temporal correspondences. Collecting such a dataset in a real-world setting is extremely challenging as it requires either expensive sensors or restricted experimental settings. To simplify the setting, existing data is either class-specific (, human) [1]}, [2]}, [3]}, or of extremely small scale [4]}, [5]}, or lacking ground-truth 3D models [6]}. Given the progress in computer graphics, synthetic data is becoming increasingly photo-realistic and readily available. DeformingThings4D [7]} provides a large collections of humanoid and animal 4D models, but lacks textures and background. SAIL-VOS 3D [8]} contains photo-realistic game videos together with various ground-truth. For more details, please see the comparison table in Appendix § .
